screws › close tolerance screws
NAS1189E04P6LK
Close Tolerance Screw
Description
Fastener Length: 3/8", Thread: 4-40, Thread Length: 17/64
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.344 inches minimum and 0.375 inches maximum |
| Head Diameter | 0.442 inches minimum and 0.507 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Torque set |
| Length | 3/8 |
| Locking Feature | Strip |
| Material | Iron |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams5737 assn std single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.176 inches minimum and 0.269 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNJF |
| Thread Size | 4 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1189E04P6LK. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error